Package systems

But, um, distributors could equally well set up anything else in their distribution to do
that.

The problem here is that it turns your life into a hell of tracking lots of elisp packages by
hand, or waiting roughly eighty million years for integration into GNU Emacs proper (which
generally damages it as an external package as well thanks to RMS's apparent dislike of e.g.
version numbers or decent documentation for internal functions).

For me, life is way too short to do that.